Actually in province of Como
TYPES OF CANCELLATIONS and PERIOD OF USE |
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| SD - straight block letters | Of prephilatelic origin, from january 1843 to may 1857 |
| CO - circle with ornate | From june 1857 to april 1861 |
USE OF THE CANCELLATIONS |
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| Cancellation | Prehilatelic | 1st issue | 2nd issue | 4th Sardinia | Revenue |
| SD - straight block letters | X | X | - | - | X |
| CO - circle with ornate | - | X | X | X | - |
VALUTATION OF THE CANCELLATIONS (**) |
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| Cancellation | Prephilatelic | 1st issue | 2nd issue | 4th Sardinia | Revenue |
| SD - straight block letters | 4 - 5 | 6 - 5 | - | - | 9 - 11 |
| CO - circle with ornate | - | 6 - 6 | 9 - 8 | 8 - 8 | - |
(**) The evaluation is expressed using a double system: in white color you can find the score indicated in the Sassone catalogue and in green color the one that the experience of the collectors consider coherent with the availability on the market. I want to underline that the alternative valutation DOESN'T want to replace the one from the catalogue but it only wants to give you a personal esteem, coming from decades of specialized collecting and costant research of this kind of cancellations.
The score system used there is the same of the one present in the Sassone catalogue (from 0 to 13 and from R1 to R5).
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| SD cancellation on 45 centes, 1st issue |
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| CO cancellation on 15 centes, 1st issue | CO cancellation on 5 soldi, 2nd issue, 1st subtype |
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| CO cancellation on 20 centes, 4th issue of Sardinia |
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| SD cancellation on revenue |