Table:
text: Yellow Coach Manufacturing Company
P-series (1939-1944)
P-series (1939-1944)
Model Built Quantity Seats Length_ Engine
PG-2501 1939–1940 8 25 ft1in (m) GMC 248 6 cyl. gas
PG-2502 1939–1940 66 25 ft1in (m) GMC 308 6 cyl. gas
PG-2503 1941 4 25 ft1in (m) GMC 248 6 cyl. gas
PG-2504 1940–1941 70 25 ft1in (m) GMC 308 6 cyl. gas
PG-2505 1941–1942 118 25 ft1in (m) GMC 308 6 cyl. gas
PG-2901 1939–1940 50 29 ft0in (m) GMC 426 6 cyl. gas
PD-2901 1939–1940 16 29 ft0in (m) GMC 4-71 4 cyl. diesel
PG-2902 1940–1941 56 29 ft0in (m) GMC 426 6 cyl. gas
PD-2902 1941–1942 249 29 ft0in (m) GMC 4-71 4 cyl. diesel

text: Yellow Coach Manufacturing Company
P-series (1939-1944)
P-series (1939-1944)
Model Built Quantity Seats Length_ Engine
PG-2903 1941–1942 304 29 ft0in (m) GMC 426 6 cyl. gas
PD-3301 1942 115 33 ft0in (m) GMC 4-71 4 cyl. diesel
PG-3301 1942–1943 49 33 ft0in (m) GMC 477 6 cyl. gas
PD-3701 1940–1941 59 37 ft0in (m) GMC 6-71 6 cyl. diesel
PDG-3701 1940–1941 240 37 ft0in (m) GMC 6-71 6 cyl. diesel
PG-3701 1940–1941 70 37 ft0in (m) GMC 707 6 cyl. gas
PGG-3701 1940–1941 91 37 ft0in (m) GMC 707 6 cyl. gas
PDA-3701 1942–1943 185 37 ft0in (m) GMC 4-71 4 cyl. diesel
PGA-3701 1942–1943 51 37 ft0in (m) GMC 477 6 cyl. gas
PDG-4101 1940–1941 224 41 ft0in (m) GMC 6-71 6 cyl. diesel
PGG-4101 1940–1941 35 41 ft0in (m) GMC 707 6 cyl. gas

Question: What is the model of the 29 seat engine built by the Yellow Coach Manufacturing Company in 1941-1942?