i found these wonderful case stickers here today.
they are from the 50s/60s and still unused!
at that time it was a common habit to collect those stickers to show where you have been so far.
well, some people still do that today.
but wouldn't it be wonderful to get some and put them in an old frame in the nursery?
the owner kept those stickers treasured in a box till he died.
now they are on sale. about 100 still left.
he must have been a very adventurous man!
they are about 2€ each...