6.5x54 Mannlicher ''H Ε Σ 1910''

Interesting cannelure. I pulled the propellant out because the corrosion was coming through the primer. Somebody decided to clean it with something very abrasive. Luckily vinegar soak removed everything.
scan0058

Eta Sigma Elleniki Stratos Greek Army.
H ??? Not Hirtenberg; that name was 1920s.
A German company, perhaps?
Or Greek “N”??
Being 1910, Greece was still being supplied by Austrian/German Firms, eg Keller, GRoth, etc. With connections to OEWG Steyr.
Any other suggestions??
Doc AV

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Vlad: Bullet appears to be Carcano. What is its miked diameter? Jack

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Projectile base 6.72mm and canellure 6.5mm.

Vlad: 6.72 mm (.264+) is more like Carcano (.266 or so) than to 6.5 mm Schoenauer (.262+, maybe .264 max.). And the cannelure is characteristically Carcano. Jack

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So is it possible this is not Hirtenberg but some kind of Italian contract for Greece, like Doc AV says?

In Jan 1897, KELLER & CO became a stock company and was renamed HIRTENBERGER PATRONEN ZUNDHUTCHEN UND METALLWARENFABRIK AG VORMALS KELLER & CO (HP).

In 1898 HP was registered at the Vienna stock exchange. From c1898 it is believed that the transitional “H K&C” hs was used (no 1897 date is confirmed with “H”). From 1905, the “H K&C” hs was replaced by the use of a plain “H” hs.

The “H/E/1910/Σ” hs with other dates from 1907-1913 is generally identified as Hirtenberger. There are many examples of these known with SP and HP bullets as well as FMJ.

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