How much would you like to get for it Roy? It's not easy to put a price on. I've seen Enfields of various versions go for anywhere between $65 up to $350 generaly. I've seen people asking 700 or more with the bayonet, sling and oiler intact but I don't see people buying them at those prices very often either. One of the tiger head BSA's did go for $850 recently at auction. It was in really excellent condition though. Depending on how much you want to sell it for I may like to buy it. The text on the bolt handle does match the receiver. BSA made 10,000 of these rifles.
That should be an Enfield No.1 Mk III.