Vivaldi's works have been catalogued multiple times by different people at different times. Thus, one work might have a 'Ryom number' (written as RVxxx), a Pincherle catalogue ID (P<something>), a Ricordi number (Rxxx) and a Fanna number (F<something>). These days, no-one uses anything other than RV numbers but you might come across old CDs or LPs that refer to things by their other identifiers. The following table lists all currently known items in the RV catalogue (it's being added to all the time as new discoveries are made), together with a brief description and that work's corresponding identifiers in the other three catalogues, if any. Each column is sortable (just click the little up/down arrows next to each column name to alter the sort order). The entire table is also searchable (for example, type 'flute' in the search box to find works that have something to do with that instrument). The 'owned' column is there simply to remind me whether I have a recording of that work or not!
I am indebted to numerous online sources for the content of this catalogue. The starting point was Wikipedia, of course, but that was soon supplemented by secondary information made available by Francois Dardel. and the cross-references to the non-Ryom catalogue numbers was obtained from Classical.net. I've supplemented that with information from other, non-specific sources (such as CD booklets etc). I have taken the liberty of making the Ryom numbers consistently three-digits long, otherwise they don't sort properly. Without leading zeroes, for example, the natural sort order would be 1,10,11,12...19,2,20,21,22...3 and so on. It would be useful if future musicologists would consider computer sort orders when they devise their numbering schemes! Roman numerals, for example, are an absolute bugger to work with! (Looking at you, Mr. Hoboken!!)