Thanks for your reply, appreciated.
Below are two photos of the “dovetails”. Apart from the two big nuts on the Swift the dimensions for each dovetail, width wise, seem to be the same. I was thinking I could replace the bracket of the Swift to the dovetail fitting as on the Celestron allowing me to use, hopefully, the same basic mount. If the telescopes and lenses are ok I would thereafter look towards updating the mount. I don’t think the celestron was used.
The Celestron has a black knob against an orange disc at the end of the telescope. I have no idea it’s purpose.
I also have 5 USSR lenses (silver as in the photo) and would they be for photography ?
thanks
M