STATE SECRETARY FOR THE RUSSIAN PROTECTOR IN THINGS AND IN MORAVA, PRAGUE, inv. 1880, sig. 109-5/108 (damaged)

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English Translation

Attachment to W.B. Abt.Ia-2(LS) Nr. 375/42 15 v. 30.4.42. sabees M blow valve 800E-051 30° mmet adjustable up to 3m balloon diameter (high adjustment) In desired high air layers -full valve binding thread 200m long the balloon expands and 3mm opens the valve. Bete cotedr aa t ce -bind thread 200m long as weight balance for lost gas 3mm0 (fluidity ballast) Stanldrant 100m long 16mm Schemat Darstellg.der Tragwirt-Störballone gegen Freileitungen DRdLu.Ob.d.L. LJn.13 25.3.42