Abstract

An expansible document holder includes a rectangular base wall, left and right lateral flaps connected to left and right lateral edges of the base wall, and lower and upper flaps connected to lower and upper edges of the base wall. The left and right lateral flaps and the lower and upper flaps are foldable relative to the base wall to a document confining position, wherein the left and right lateral flaps are superposed on the base wall, wherein the lower flap and the left and right lateral flaps overlie each other, wherein the upper flap overlies the left and right lateral flaps and the lower flap, and wherein the left and right lateral flaps, the lower and upper flaps and the base wall cooperatively confine a document confining space thereamong. The lower flap has opposite lateral portions that are disposed in an overlying manner with respect to the left and right lateral flaps in the document confining position. One of the left and right lateral flaps and the lateral portions of the lower flap in each overlying pair is formed with a tab slot. The other one of the left and right lateral flaps and the lateral portions of the lower flap in each overlying pair is provided with an anchoring tab that extends through the tab slot so as to inter-engage the lateral portions of the lower flap with the left and right lateral flaps.