Vintage 1930's 1940's Die Cut Mechanical Valentine's Day Cards Lot Set of 5

Lot #1 - Set of 5 Vintage Die Cut Mechanical (movable) Valentine's Cards depicting Kids and Animals. These were originally pasted in an Old Scrapbook and the pages became brittle. The Front of the Cards are in Great Condition and the colors are Bright. The backs show residue from the Scrapbook pages, each to a varying degree, please see picture and  descriptions of each. All are from the 1930's and 1940's Era.  All Die Cut.  1.  Baby elephant holding a red heart.  Mechanical Head.  Split bottom for Stand up design,  USA Back has some light pencil signing.   2.   Dog & Chick Beating a Drum.  Mechanical Arm.  Split Bottom for Stand up Design. Litho USA Back has some light pencil signing and scrapbook paper. 3.  Girl with Dish Towel.  Mechanical arm with dish Towel.  Made in Canada Back has Scrapbook paper. 4.  Lawn mowing Boy.  Mechanical arm and lawn mower.  Split Bottom for Stand up Design.  USA Back Pencil signing and Small remnants of Scrapbook paper.   A little Scuff over the S in Lets 5.  Children bundled in Winter Close and Sleigh.  Girl has Mechanical arm with puff.  A-meri-card USA #4591.  Back has pencil mark.  Small tear on boys coat.  Creasing on the left side. Stand up designed to display.  Back has some Scrapbook paper.