BANGBANGSAN

Tsuka marking is 柄平卷 The company logo it's very similar to 山本軍刀店，but a little different. It look like 幸 rather than 山本, maybe another logo for 神户軍刀店？Since the owner‘s name 神户一幸。We know 合名會社 神戶商店 make Type 95 NCO sword using K or 一 inside the Cherry blossom mark, perhaps not many people know it also called 神戶軍刀店（hence they both use the same phone number)？

The photo is too small,I can only make a guess-陸軍造？

昭和己卯年（Showa 14)，1939.No season on this one.

This one is correctly stamped.

With way lock set up,it can't be put upside down.

Is's a repro

The mark besides Naval Acceptance Stamp, One is from 中野商店，one is 松山由造‘s .

備前國住長船祐定作 大永六年八月吉日

As a 造兵刀&NCO sword lover, I've been observing the price for many years(also bought many), like John said that 造兵刀 sold for$2000 was all because it's the minty condition, so does the recent two mint condition Type 95 sold for over 2K, keep that in mind, the regular condition ones will NOT be sell for that kind of price.

This is a early 造兵刀 http://ohmura-study.net/206.html

I agree, it looks like later war 造兵刀 instead of early ones. @Kiipu

東都住人石堂是一十代孫藤原輝秀精鍛造之 「石堂是一は長運斎綱俊の甥で、初め綱俊について鍛刀の技を学び、後に石堂家の七代目を継いで是一と称しました。作風は大別して備前伝と相州伝の二様がありますが、やはり彼の本領は石堂派の御家芸ともいえる備前伝であり、傑作も多く残されています。

Very nice 石堂輝秀！If there are some full tang photos would be great!

I'm going to leave that puzzle to Thomas&SteveM.

The signature reads 大仁田厚，should be a made up Japanese smith name.