Vintage Biro Minor insert Refills Medium Box Of 50 New Old Shop Stock pens rare.

Vintage Brand new/old shop stock full box of 50 biro minor insert refills, not sure if the ink is black or blue, the sticker on the front looks black but could be blue and inside the refills look blue to me. These are possibly dried up. Unsure of age but judging on everything else I have acquired in this lot I would say 1960's - 1980's.

These are part of a large warehouse overflow stock room that I have recently acquired and these have sat there untouched since new, bearing that in mind I am selling these for  collectable and  display purposes only as I can't guarantee these  pen inserts have stood the test of time and would still function. Also Some of the boxes are a bit worn through what I would guess dampness/moisture over the years.

Fast and free UK postage.

Worldwide postage at eBay global shipping prices.

Thanks for looking.