Swift training rifle B model

[Rob Sellers]

I have a swift training rifle,that i'm going to be putting up for sale.
I believe these were based on the P17 Springfield rifle used by the home guard and were used for getting recruits used to handling a firearm but without the danger of mishaps.
Anyway she in pretty good condition,can anybody tell what would be a fair price to ask for this item,its does not have the fitted box they were issued with.

Thanks in advance

Rob