GSGS Series 4228. First Edition. Italian Istituto Geografico Militare map dated 1931 and photolithographed by the British Ordnance Survey in 1943. The meridians are based on the meridian of Rome, which is 12 degrees, 27 minutes and 7.1 seconds east of Greenwich. Contours at 20 metres (V.I.). North Italy Grid.
GSGS Series 4228. First Edition. Italian Istituto Geografico Militare map dated 1931 and photolithographed by the British Ordnance Survey in 1943. The meridians are based on the meridian of Rome, which is 12 degrees, 27 minutes and 7.1 seconds east of Greenwich. Contours at 10 metres (V.I.). North Italy Grid.
GSGS Series 4228. First Edition. Italian Istituto Geografico Militare map dated 1931 and photolithographed by the British Ordnance Survey in 1943. The meridians are based on the meridian of Rome, which is 12 degrees, 27 minutes and 7.1 seconds east of Greenwich. Contours at 20 metres (V.I.). North Italy Grid Brown.
GSGS Series 4228. First Edition. Italian Istituto Geografico Militare map dated 1931 and photolithographed by the British Ordnance Survey in 1943. The meridians are based on the meridian of Rome, which is 12 degrees, 27 minutes and 7.1 seconds east of Greenwich. Contours at 20 metres (V.I.). North Italy Grid Brown.
Prime meridian: Rome (Monte Mario). Overprint in red which includes, "Carta delle Valanghe", at top of map and edition statement, "Edizione provvisoria", near lower edge of sheet. "Rilievo del 1935 XIII."
GSGS Series 4228. First Edition. Italian Istituto Geografico Militare map dated 1931 and photolithographed by the British Ordnance Survey in 1943. The meridians are based on the meridian of Rome, which is 12 degrees, 27 minutes and 7.1 seconds east of Greenwich. Contours at 20 metres (V.I.). North Italy Grid Brown.
GSGS Series 4228. First Edition. Italian Istituto Geografico Militare map dated 1931 and photolithographed by the British Ordnance Survey in 1943. The meridians are based on the meridian of Rome, which is 12 degrees, 27 minutes and 7.1 seconds east of Greenwich. Contours at 20 metres (V.I.). North Italy Grid.
GSGS Series 4228. First Edition. Italian Istituto Geografico Militare map dated 1931 and photolithographed by the British Ordnance Survey in 1943. The meridians are based on the meridian of Rome, which is 12 degrees, 27 minutes and 7.1 seconds east of Greenwich. Contours at 20 metres (V.I.). North Italy Grid Brown.
GSGS Series 4228. First Edition. Italian Istituto Geografico Militare map dated 1931 and photolithographed by the British Ordnance Survey in 1943. The meridians are based on the meridian of Rome, which is 12 degrees, 27 minutes and 7.1 seconds east of Greenwich. Contours at 20 metres (V.I.). North Italy Grid.
Prime meridian: Rome (Monte Mario). "Aggiornamenti: Ricogni. parziali 1936-XIV (Rotabili e particolari importanti)." "Aggiornata e ridisegnata nel 1931-IX."
GSGS Series 4228. First Edition. Italian Istituto Geografico Militare map dated 1931 and photolithographed by the British Ordnance Survey in 1943. The meridians are based on the meridian of Rome, which is 12 degrees, 27 minutes and 7.1 seconds east of Greenwich. Contours at 25 metres (V.I.). North Italy Grid Brown.
GSGS Series 4228. First Edition. Italian Istituto Geografico Militare map dated 1931 and photolithographed by the British Ordnance Survey in 1943. The meridians are based on the meridian of Rome, which is 12 degrees, 27 minutes and 7.1 seconds east of Greenwich. Contours at 20 metres (V.I.). North Italy Grid.
GSGS Series 4228. First Edition. Italian Istituto Geografico Militare map dated 1931 and photolithographed by the British Ordnance Survey in 1943. The meridians are based on the meridian of Rome, which is 12 degrees, 27 minutes and 7.1 seconds east of Greenwich. Contours at 20 metres (V.I.). North Italy Grid Brown.
