Tsuba mei translation?

[rknack]

I have a small antique tsuba, made for a tanto. It has a mei on it, but I have not been able to translate it. Been asking for help on several forums, thought I'd try here, too.

First, an enhanced photo of the mei (this was the best I could do in my photo editor):



Front and back of the tsuba:




I'm pretty sure the top kanji (the one that looks sort of like a square with a cross at the botttom and a line in the middle) reads "shige", but I'm not certain of the other one.

Any educated guesses on this puzzler?

[rknack]

Nobody? Effingham, would you have any idea?

[Suzuki Ken'ichi]

You mentioned that you were posting on several fora. Have you tried Sword Forum? They have rather a collection of nihonto fanciers there.