Vintage Advertising Blotter Markwell staple robot stapler, HO Bates, Elizabeth, New Jersey, red white and blue makes me think this is probably circa 1940s during World War II era and most of the bladders that came from the small find we’re all dated right around that same. Era . C 1940 , Corners are slightly bumped. . Great art work !!! Guaranteed old and original  . Measures aprox 3 1/2 x 6” . . An Advertising blotter is like a miniature sign note that in the old days these were Advertising give aways for people to use the backside to blot ink from their fountain pens or stamps . please note I am offering this with a friendly cost of shipping as I will use a stiffener in an envelope and I will pay for this to ship not machinable . However no frills theres no tracking . I am trying this in order to save you shoppers postage money. With rising trackable shipping costs resulting in the cheapest I can charge this saves the buyer over $2 on an inexpensive item. I will see how this works out for you the customer and decide if I should continue in this manner of shipping .My assumption is that you prefer the cheaper method . . Lotbe 23 Bookinv513