They look like the same ‘stamp was used for the Rt Foot immunization illustration and the faux BC.
Yep. And if you read this:
you will find it dates back to the 60's.
Just saved fred’s graphic to my pictures and enlarged both of the feet.
1.The tell tell cross is not visibleon either of the feet on his sign
2. The second toe on both of the sign feet are longer than the big toe on both feet. It is shorter on the BC foot.
3. The edges of the sign feet are not as smooth as the one on the BC. More creases in the sign.
They are NOT from the same feet. Look for yourself. Save and enlarge. Also look at the spacing between the toes not the same at first appearance without measureing with a tape.