Thanks for posting your picture. Sorry I can't help with the location. This particular Heinkle looks like it was produced as a sub-contract by the Junkers- Bernburg facility. The camoflage seems to indicate this with the sloping leading edge to nose fuselage demarcation line. The Werk numbers however are in the 310001-31002X range. Can you actually make out the Werk Nr. In the photo you have?

Without and markings I'm wondering if it's located at the factory before being ferried to the JG-1 perhaps. Obviously this is an assumption totally on my part.

Thanks for sharing your great picture with us.

Kind regards,

Troy