Not sure who made these - certainly not from Aberdeen as they would have been marked with the initials W & B on the fins, or C & P - ie William Brown or Charles Playfair (examples of these can be seen under tackle makers on this web site
www.feathersfliesandphantoms.co.uk ). These would have been made as "re-sale" items for tackle shops - hence no makers mark.
This minnow would be post 1900 as it has the Geens swivel on the head and Browns patent for this around then.
Value - mint on card, but no makers mark - I would guess around £20 - £30 (A standard one on card in box made by Brown £50 upwards)
Hope that's a help
Cheers
Colin