| Batch | Type | Fleet numbers | Manufactured | Into Service | Withdrawn | Quantity | 
|---|---|---|---|---|---|---|
| 1. | Laurin & Klement - Škoda 505 NR | 11 – 15 | 16.1.1928 – 1.2.1928 | 1928 | 1937 | 5 | 
| 2. | Laurin & Klement - Škoda 505 NR | 16 – 17 | 1928 | 1928 | 1939 – 1940 | 2 | 
| 3. | Laurin & Klement - Škoda 505 NR | 58 – 59 | 1929 | 1929 | 1939 | 2 | 
| 4. | Laurin & Klement - Škoda 505 Aerable | 60 | 1929 (?) | 1933 | 1942 | 1 | 
| Total | 1928 – 1929 | 10 | ||||
| Length | 6400 mm (#51 - 59)
 7120 mm (#60)  | 
			
|---|---|
| Width | 2120 mm (#51 - 59)
 2490 mm (#60)  | 
			
| Height | 2650 mm (#51 - 59)
 2620 mm (#60)  | 
			
| Height of floor | 700 mm | 
| Doors | 1 | 
| Design load | 30 + 1 (#51-59)
 32 + 1 (#60)  | 
			
| Weight of unloaded vehicle | 4320 kg (#51-59)
 4530 kg (#60)  | 
			
| Gross vehicle weight | 6720 kg (#51-59)
 7090 kg (#60)  | 
			
| Engine | Škoda 505, benzínový, vodou chladený 4-valec | 
|---|---|
| Continuous power output | 25,7 kW / 1400 rpm | 
| Piston displacement | 4710 cm3 | 
| Maximum speed | 35 km/h | 
| Transmission | manuálna, 4-stupňová | 
| Ignition system | Scintilla | 
| Tyres | 32 x 6" | 
| 1. | 2. | ||
|---|---|---|---|
| 11 | 51 | ||
| 12 | 52 | ||
| 13 | 53 | ||
| 14 | 54 | ||
| 15 | 55 | ||
| 16 | 56 | ||
| 17 | 57 | ||