New to the site, 1st, time post,

I have a Mason sight that I purchased with my Jennings Carbon xtreme some 20 years ago.
Severe arthritis has prevented me from using this rig for years.
I finally received my disability certificate and installed a Draw-lock.

I installed a battery and turned on the site. All 4 lights lit up, great.
Slowly the lights began to burn out until they were all gone and the only one I have is the extra one that came with the sight.There are no #'s or markings of any kind on the bulbs.

Can anyone give me a part #,brand or size of a bulb that will replace the bad ones?
Any help would be appreciated

Snuff Jaw