Organising dark slides

[thronobulax]

where did you source these bags please?

It's been some years, so I don't specifically recall, but I think I got them from a manufacturer's rep here in the US. You can search for "Antistatic Resealable Bag" and look for UK providers. For example, I found this:

https://www.amazon.co.uk/Antistatic-Resealable-15X20cm-5-9X7-9inch-Electronic/dp/B07CQMRD8F/ref=sr_1_11?crid=3JC63FH9QXF42&keywords=Antistatic+Resealable+bag&qid=1649982376&s=electronics&sprefix=antistatic+resealable+bag%2Celectronics%2C141&sr=1-11

You might also look at https://uk.farnell.com/, though I don't know if they have resealable bags.