Found an American Youtuber who has posted some interesting videos. Mostly American stuff but some British. The best bit is he does not ramble on and most of his videos are only a couple of minutes long.
Look up 1900colt on YouTube.
Zastava Owners Club.
Nearly as big as I.J.'s collection.
https://forum.vintageairgunsgallery....-us/#post-6827
Vintage Airguns Gallery
..Above link posted with permission from Gareth W-B
In British slang an anorak is a person who has a very strong interest in niche subjects.