English: Russia 1892-03-24 reverse of a stampless wax-sealed 100Fr. insured money letter sent from ZGERSH PETROKOV (now Zgierz Poland) transit THORN (Toruń) to Braunschweig Germany. The cover was sealed according the rules prescribed for money letters which stated that a large seal was to be applied in the centre, as well as four smaller seals. The large seal is hard to read but a word beginning 'CTP…' = 'STR…' indicates that the seal was used for insured, that is 'strakhovaya' correspondence. The four smaller seals are by the sending company 'WOrlamunder'. At front twice '100fr.' in black and '100f' in red is noted. The insured amount is 100 French Francs, which at the time was 25 Ruble. The second and third line on the right in German: 'Rubel Fünf und Zwanzig'. The '267', noted at front, is probably the unique registration number of the insured cover that year. A calculation shows the fees of postage and insurance, noted reverse: '20' (postage rate), '13' (insurance fee, 0.5% of 25R = 12.5 thus 13 kopecks), '10' (additional postage rate for international money letters), making a total of '43' kopecks. The fees were paid in cash since it does not have any adhesive stamps.

The fees were based on the regulation of 20 March 1879 when a new unit weight fee of 7 kopecks for all money letters was introduced as well as new insurance rates:

• 1 for a declared value of 1 ruble up to 600 rubles – 0.5%, a full kopeck is collected for any part of a kopeck,
• 2 for a value above 600 rubles up to 1600 rubles – ¼ % plus 1.5 rubles,
• 3 for a value above 1600 rubles – 1/8 % plus 3.5 rubles.

Money letters now also had to be registered for a fee of 7 kopecks and the fee for the receipt was discontinued. On 1 April 1889 for international money letters, the unit weight fee and the registration fee were both increased to 10 kopecks, 1 June 1893 new international insurance rates were introduced. (cf. Howard L. Weinert).