The Royal Hungarian State Wine-Cellar (Magyar Királyi Országos Mintapince) was founded in 1881 in Budafok, today a southern suburb of Budapest. The total length of the historic cellar system in Budafok is estimated to be 25-30km in total, and only a fraction of it is in use today. The main building is still there in the 22. district of Budapest in Kossuth Lajos utca 84. In 1901 just next to it the Royal Hungarian Cellarmaster Course (Magyar Királyi Pincemesteri Tanfolyam) started as a winemaker education program. In 1923 a third institution, the Hungarian Royal State Winery (Magyar Királyi Állami Pincegazdaság) began operating within the Hungarian Royal Cellar Master Course.

On bottle labels, documents or price lists of old Tokaji we can find references to all three institutions mentioned above. 

While the winemaker school operates until the present day the cellar seems to have disappeared after World War II. Surprisingly little has been published about the historic details of the cellar operations. The wine cellar collected and auctioned the best wines of Hungary with Tokaji being the most famous, of course. Although cellar excursions are offered in Budafok, I have not been able to find out which sections belonged to the Royal Hungarian cellar.

Today the Hungarian state owns a collection of some 400.000 bottles of old tokaji wine, keeping them in two cellars in the Tokaj wine region - the National Wine Treasure in Tolcsva, and the Grand Tokaj Museum Collection in Szegi. Both cellars are not open tot he public, you'd need a special permit to enter. Unfortunately, the wines are not very old, the oldest vintage being 1895 in Tolcsva and 1920 in Szegi. The wines in Tolcsva are never sold, some wines from the Grand Tokaj Collection are offered through resellers and auction houses.