@Uncle Frank - not an expert on antiques but an expert on seal script.
Hi,
I tried to read them.
They are old style of kanji.
They can be read like that...
<総門(somon)main gate><黎明(reimei) daylight> <堅?(?)>
I am afraid the above is incorrect except for 門.
It cannot be 総門, as the left-hand side radical of the character to the extreme right (on the picture) is 氵 and not 糸. The bottom part of the latter are two hands, which can form many radicals in modern script. I wil have to look it up in a dictionary, so bear with me. I agree with the 門 character.
The middle bottom is not 黎明. First the top left radical of the first character is not 禾 but 未, and the right top is not 勿 but 刀. Bottom radical of this character doesnt ring a bell, so it would require some research. The other charatcer is 暉 and not 明 (though the meaning of both is similar). The right hand side of the bottom-right character seems to be somewhat similar to one of many seal script forms of the 月 but it is not.
The top middle text. Left hand side character is not 堅. Top right radical it is not 又, and the bottom one is definitely not 土. The correct character is 監. The right hand side character is slightly blured so I'd appreciate a more clear picture, especially of its right-hand side, as the left one seems to be 心. In fact, a clear picture of the second seal would be most helpful, too.
Edit: I think the bottom-left character preceding 暉 is 製, which means manufactured by/in. 暉 can be either first character of person's name / alias, or factory name. Note that 暉 is a variant of 輝, though looking at the seal script on the seal, it is definitely written as 暉.