Expandable holder

1. A pad holder comprising

a back ply having a horizontally disposed score line spaced from a bottom edge thereof, a horizontally disposed score line spaced from a top edge thereof, a vertically disposed score line spaced from one side edge thereof, a vertically disposed score line spaced from another side edge thereof and a plurality of angularly disposed score lines, each said angularly disposed score line extending from an intersection of a respective horizontally disposed score line and a vertically disposed score line towards a respective corner of said ply;

a pair of side flaps at opposite sides of said back ply, each said side flap being of a height equal to a minor fraction of the height of said back ply and folded over said back ply along a fold line therebetween and including a score line spaced from and parallel to said fold line;

a flap extending from said bottom edge of said back ply in overlying relation to said back ply and secured to said side flaps between said score lines thereof to define a pocket of a height less than the height of said back ply, said flap being of a height equal to the height of each said side flap and having a score line spaced from and parallel to said bottom edge whereby upon insertion of materials into said pocket, said flap and said back ply are expandable from each other to enlarge the thickness of said pocket while decreasing the width of said pocket; and

a front ply secured to and extending from said top edge of said back ply in overlying relation to said pocket.

2. A pad holder as set forth in claim 1 wherein said front ply has a score line spaced from and parallel to said top edge to permit said front ply to fold thereat.

3. A pad holder as set forth in claim 2 wherein said back ply has a score line spaced from and parallel to said top edge and coincident with said score line in said front ply to permit said back ply to fold thereat.

4. A pad holder as set forth in claim 1 wherein said front ply has a smooth uninterrupted surface.

5. A pad holder as set forth in claim 1 wherein said front ply is of equal width to said back ply.

6. A pad holder as set forth in claim 5 wherein said front ply is of equal height to said back ply.

7. A pad holder as set forth in claim 1 wherein said back ply has a second score line spaced from and parallel to said top edge and intersecting with a respective angularly disposed score line.

8. A pad holder as set forth in claim 7 wherein said front ply has a score line spaced from and parallel to said top edge and coincident with said second score line in said back ply to permit said front ply to fold thereat.

9. A pad holder as set forth in claim 1 further comprising means for releasably securing said front ply to said flap.

10. A pad holder as set forth in claim 1 further comprising means for fixedly securing said front ply to said flap.

11. An envelope comprising

a back ply having a horizontally disposed score line spaced from a bottom edge thereof, a horizontally disposed score line spaced from a top edge thereof, a vertically disposed score line spaced from one side edge thereof, a vertically disposed score line spaced from another side edge thereof and a plurality of angularly disposed score lines, each said angularly disposed score line extending from an intersection of a respective horizontally disposed score line and a vertically disposed score line towards a respective corner of said ply, said back ply being of a greater width than height thereof;

a pair of side flaps at opposite sides of said back ply, each said side flap being of a height less than the height of said back ply and folded over said back ply along a fold line therebetween and including a score line spaced from and parallel to said fold line;

a flap extending from said bottom edge of said back ply in overlying relation to said back ply and secured to said side flaps between said score lines thereof to define a pocket of a height less than the height of said back ply, said flap being of a height equal to the height of each said side flap and having a score line spaced from and parallel to said bottom edge whereby upon insertion of materials into said pocket, said flap and said back ply are expandable from each other to enlarge the thickness of said pocket while decreasing the width of said pocket, said pocket being of a width and height to receive photo prints therein;

a front ply secured to and extending from said top edge of said back ply in overlying relation to said pocket, said front ply being of rectangular shape and being of equal width to said back ply and of equal height to said back ply; and

means on said front ply for releasably securing said front ply to said flap.

12. An envelope as set forth in claim 11 wherein said front ply has a score line spaced from and parallel to said top edge to permit said front ply to fold thereat.

13. An envelope as set forth in claim 12 wherein said back ply has a score line spaced from and parallel to said top edge and coincident with said score line in said front ply to permit said back ply to fold thereat.

14. An expandable holder for a stationary pad having a stiff backing and a plurality of sheets of paper comprising

a back ply having a horizontally disposed score line spaced from a bottom edge thereof, a vertically disposed score line spaced from one side edge thereof, a vertically disposed score line spaced from another side edge thereof and a plurality of angularly disposed score lines, each said angularly disposed score line extending from an intersection of said horizontally disposed score line and a vertically disposed score line towards a respective corner of said ply;

a front flap extending from said bottom edge of said back ply in overlying relation to said back ply and having a score line spaced from and parallel to said bottom edge in coincidence with said first horizontally disposed score line of said back ply; and

a pair of side flaps securing said front flap to said back ply along opposite sides of said back ply, said side flaps being of a height equal to the height of said front flap to define a pocket of a height that is a minor fraction of the height of said back ply to receive a stiff backing of a stationary pad therein with the plurality of sheets of paper disposed outside said pocket, at least one of said side flaps being folded over said back ply along a fold line therebetween and including a score line spaced from and parallel to said fold line in coincidence with a respective vertically disposed score line of said back ply whereby upon insertion of the stiff backing and sheets of paper of the stationary pad into said pocket, said front flap and said back ply are expandable from each other to enlarge the thickness of said pocket while decreasing the width of said pocket.

15. An expandable holder as set forth in claim 14 wherein each of said side flaps is folded over said back ply along a fold line therebetween and includes a score line spaced from and parallel to said fold line in coincidence with a respective vertically disposed score line of said back ply.

16. In combination

a stationary pad having a stiff backing and a plurality of sheets of paper; and

an expandable holder including a back ply having a horizontally disposed score line spaced from a bottom edge thereof, a vertically disposed score line spaced from one side edge thereof, a vertically disposed score line spaced from another side edge thereof and a plurality of angularly disposed score lines, each said angularly disposed score line extending from an intersection of said horizontally disposed score line and a vertically disposed score line towards a respective corner of said ply; a front flap extending from said bottom edge of said back ply in overlying relation to said back ply and having a score line spaced from and parallel to said bottom edge in coincidence with said first horizontally disposed score line of said back ply; and a pair of side flaps securing said front flap to said back ply along opposite sides of said back ply, said side flaps being of a height equal to the height of said front flap to define a pocket of a height less than the height of said back ply to receive said stiff backing of said stationary pad therein with the plurality of sheets of paper disposed outside said pocket, at least one of said side flaps being folded over said back ply along a fold line therebetween and including a score line spaced from and parallel to said fold line in coincidence with a respective vertically disposed score line of said back ply whereby upon insertion of said stiff backing and said sheets of paper of said stationary pad into said pocket, said front flap and said back ply are expandable from each other to enlarge the thickness of said pocket while decreasing the width of said pocket.

17. The combination as set forth in claim 16 wherein each said side flap is of a height equal to a minor fraction of the height of said back ply.