trailer tail light fuse

Poor eye sight isn't helping. Can't figure out standing in the rain which fuse goes to the trailer tail light only.
I see strange abbreviations for some likely ones but have failed to locate it.
All lights on the H3 are working.
Brake and turn work on trailer but nobody home on the tailight wire??
Probably dumb ole guy problem.

It's fuse 55 which is the far upper right when standing in front of the truck facing it. It's just marked TRLR on the cover. I wasn't certain either based on the vague description, so I actually hooked it up to a trailer and pulled the fuse to verify. Hope this helps.

Thanks much.
I figured that was the one but in the rain and late could not see it blown. I carry a meter but it was buried in a roof top box.
Just frustrated at my lack of patience. I have dry eye condition and reading those grey numbers is hard.
Mine calls for a 10 amp.

I had a amber trailer running light on the front of the fender disappear and shorted it out.
I has to be somewhere and forged ahead. I had brake lights so I was good.