1975 collection of "The Horse" magazine - any ideas on price?

[Jericho]

I have been given a lovely collection of about 46 parts of "The Horse" magazine published in 1975. Unfortunately there are 2 or 3 parts missing from a 48 part collection but other than that they are in perfect condition with some fantastic articles on everything horse related and some beautiful photos including ones of famous competitive riders and horses and art prints.

Would anyone know how much they would be worth if anything?

 

[ELFSBELLS]

i think i've got these, are they all binded in green folders, sorry no idea of value.