Hi BigBadgers2001,
Welcome to the forum
As you know i am no expert in British steam locos but i did a search on the net and came up with the following if its of help.
A general site for Hornby locos is here detailing years and types
http://www.modeltrains.net.au/hornby/item_menu.asp
As to the 0-4-0 i couldnt find anything from your description ...but the 3F got this page up not the running number of yours but does it look like this
this one is from 1958
http://www.modeltrains.net.au/hornby/item_...asp?itemid=1204
added a picture from that page here ....if you could get a picture taken of each it may help us more ...... if you need help putting a picture on no problems send me a private message and be glad to help

Welcome to the forum

As you know i am no expert in British steam locos but i did a search on the net and came up with the following if its of help.
A general site for Hornby locos is here detailing years and types
http://www.modeltrains.net.au/hornby/item_menu.asp
As to the 0-4-0 i couldnt find anything from your description ...but the 3F got this page up not the running number of yours but does it look like this

http://www.modeltrains.net.au/hornby/item_...asp?itemid=1204
added a picture from that page here ....if you could get a picture taken of each it may help us more ...... if you need help putting a picture on no problems send me a private message and be glad to help

