Envelope indicates first September letter.

Envelope is marked second September letter.

Envelope is marked first October letter.

Beginning of this second October letter indicates that it is letter number 20.

Envelope indicates first November letter.

Envelope indicates letter is number 22 for 1969.

This second December letter is number 23.

Letter is number 24.

Envelope indicates this is the third (?) December latter.

Two of the postcards are dated 9.8.69.

Envelope and letter are marked as the first letter of 1970; telegram is postmarked January 6.

Envelopes indicate the first and second February letters, which are marked as the third and fourth letters of 1970.

Two of the envelopes are marked as the first and second March letters; the third letter as well as the postcard are also from March 1970.

No distinguishing numbers.

Envelopes are marked the first and second May letters; another two sections are marked third and fourth. The second May letter is indicated as letter 10 of 1970.

Envelopes are marked first and second June letters.

Envelopes are marked as the first and second July letters; the second July letter is indicated as being number 14.

Letter is number 15 of 1970.

Envelope indicates that this is the first "Vladimirskoe" letter -- that is, the first letter sent from the strict-regime Vladimirskaia prison.

Envelope is marked second Vladimirskoe letter (Dec. 1970); folder includes empty envelope, same time period, addressed to Tsimbal.

Envelope is marked third Vladimirskoe letter (January 1971).

Envelope is marked fourth Vladimirskoe letter (February 1971).

Envelope is marked fifth Vladimirskoe letter (March 1971).

Folder contains an envelope marked sixth Vladimirskoe letter (April 1971); letter appears to be missing initial pages.