Guys: The Prussians called the 71/84, and used it on the Gew 88 as well. The designation of the model did not change...Yes Steyr made the 71/84 bayonet for the Modell 88 rifles that they made under contract as part of the deal with the Germans on the Mannlicher Patents..
The Prussians, Saxons and the Würtenbergers did not used the 71/84 on the 88. On the 20th of November 1888 they reintroduced the longbladed SG 71 for the 88 in order to obtain additional reach, as the 88 was a bit shorter than the 71/84. Reach was compared to the reach of the French 1886 with bayonet.
The Bavarians however retained the 71/84 for the 88.
The Bavarian 71/84 were manufacture by V C Shilling, W K & C, Alex Coppel, C G Haenel, Soemmerda. A single Simson & Co has also been registered with Bavarian proof.
To my knowledge no Steyr 71/84 clone has ever been registered with any German proof or any German regimental mark.
Steyr is believed to have delivered 300.000 Gewehr 88 order by the Prussians (who used the SG 71)
German 71/84 produced from late 1888 and forward has a long fuller extending almost to the point. The Steyr clones all have a short fuller.
Is size of muzzlering 14 mm or 17,5 mm?