Dear Ms. Ivlieva,
Thank you for posting your request on History Hub!
For access to records microfilmed as Microfilm Publication A3355: Miscellaneous Lists and Registers of German Concentration Camp Inmates, Originated or Collected by the International Tracing Service (Arolsen) in the National Archives Collection of Foreign Records Seized (Record Group 242), please contact the National Archives at College Park - Textual Reference (RDT2) via email at firstname.lastname@example.org.
Due to the COVID-19 pandemic and pursuant to guidance received from the Office of Management and Budget (OMB), NARA has adjusted its normal operations to balance the need of completing its mission-critical work while also adhering to the recommended social distancing for the safety of NARA staff. As a result of this re-prioritization of activities, you may experience a delay in receiving an initial acknowledgement as well as a substantive response to your reference request from RDT2. We apologize for this inconvenience and appreciate your understanding and patience.
Using the resources available at the Arolsen Archives, we entered “Andrej Litwinenko” into the search engine on the Arolsen Archives website and located a file of digitized documents for your great-grandfather.
We hope this is helpful. Best of luck with your family research!