Not sure if this will work but they say putting clear fingernail polish on a glass crack keeps it from continuing. i tried it on a windshield and it did not work.

i would talk to a real glass professional. Even a windshield shop might give you some tips. They know glass.

They are not even my lamps and i hope they are saved. Beautiful

I would find the right type of superglue and put it on the crack. My husband did hobby stuff and has like 8 different types of superglue for all different types of materials. I would probably test on a small spot first to make sure it isn't "staining" the ceramic.

If these are good vintage or decent antique (100+ years), you should consult a pottery restoration expert. Otherwise, I’d follow the above suggestions. Btw: I had some breakage, chips, cracks on heirloom stuff in my last move. A restoration guy provided by my insurance did the restoration in front of me! Shockingly good - can’t detect any issues.

I think the are quite good quality pieces. Not sure of their age but they are the nicest ones I’ve seen. I got them for $20 each! I feel bad about the crack now. Will try a tiny spot of glue someplace where it won’t show. If I don’t get a good result I will consult with an antique dealer to find out if it’s worth having it professionally repaired.

Do you know approximately how old they are? I see some crazing. Do they have any markings on the bottom?

The bottom is covered with a piece of felt so can’t say if there are any markings. Maybe I can peel one off to check. Guy I bought them from just said he bought them when he was living in London.

There aren't any adhesives that are going to improve that. As a person who has made a living having to remove the adhesive repair attempts of amateurs, leave it alone please.

Yes, please, peel off the felt and let us know if there are any markings.

You could try some white Elmers Glue and wipe off the excess. Perhaps the white glue will camouflage the darkness of the crack.

About 40 years ago, my husband and I found a jar in an antique store that we liked. Took it to a lamp shop and had this lamp made.

I tried removing the felt but it’s stuck on so well that it will come off in shreds if I keep at it. The glue on the felt is a little gummy. I think it will leave a sticky mess behind if I try to get it off.

Another vote for regular old Elmer's Glue-All - I learned years ago that's what pros use to repair valuable antique china, etc.

However the crack hasn't come apart, so gluing does seem moot at this point.

"You could try some white Elmers Glue and wipe off the excess. Perhaps the white glue will camouflage the darkness of the crack."

Please. Elmer's white glue dries clear. Not a good idea, particularly when a black crack has not been decontaminated.

🤣 Oh well, worth a try. I never noticed that the glue dries clear. How about some white out!!!

Realized that I never posted the lamp. I was a bit daft last night. 🙄