Bavaria was a kingdom until 1918. In November of that year, Bavaria was declared a Free State. After their leader was assassinated in 1919, the Bavarian Socialist Republic was formed. However this did not last for long and from 1920, Bavaria became a state of Germany. Stamps were issued from 1849 until 1920 when it started using German stamps.
1867
Bayern Arms Series
SG # 34
Unused (Hinged)
SG # 37
Used (Hinged)
1875
Bayern Arms Series
SG # 120
Used (Hinged)
SG # 121
Used (Hinged)
SG # 122
Used (Hinged)
SG # 107
Used (Hinged)
SG # 123
Used (Hinged)
SG # 124
Used (Hinged)
1911
Prince Regent Luitpold’s 90th Birthday Series
SG # 138
Used (Hinged)
SG # 139
Used (Hinged)
SG # 140
Used (Hinged)
1914
King Ludwig III Series
SG # 171
Unused (Hinged)
SG # 172
Used (Hinged)
SG # 173
Used (Hinged)
SG # 175
Used (Hinged)
SG # 176
Used (Hinged)
SG # 178
Used (Hinged)
SG # 179
Used (Hinged)
SG # 181
Used (Hinged)
SG # 183
Used (Hinged)
SG # 184
Used (Hinged)
SG # 185
Used (Hinged)
SG # 186
Used (Hinged)
SG # 187
Used (Hinged)
SG # 188
Used (Hinged)
1919
King Ludwig III Series (Overprinted Volkstaat Bayern)
SG # 195
Unused (Hinged)
SG # 196
Used (Hinged)
SG # 197
Used (Hinged)
SG # 199
Used (Hinged)
SG # 200
Used (Hinged)
SG # 202
Used (Hinged)
SG # 206
Used (Hinged)
King Ludwig III (Overprinted Freistaat Bayern)
SG # 216
Used (Hinged)
2nd Free State Issue (Stamps of Bavaria overprinted Freistaat Bayern)
SG # 234
Used (Hinged)
SG # 237
Used (Hinged)
King Ludwig III Series (War Wounded Surcharge, für Kriegs-beschädigte Freistaat Bayern)
SG # 250
Unused (Hinged)
1920
Arms of Bayern Series (Surcharge 20 in Four Corners, Stamp of 1876)
SG # 256
Unused (Hinged)
Various Frames Series
SG # 257
Unused (Hinged)