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This model is the AHI 5859-4 Railway Station Personnel & Passengers Set in various colours. AHI is recorded as having copied several of the Kemlow/Wardie Master Models sets, originally released by Kemlow/Wardie in the 1950s, in the 1960s and exported them from Japan to the UK, USA, Canada, and Australasia. This appears to be a copy of the Kemlow/Wardie 32 Passenger Set.
The set has 7 figures on foot and a sack barrow. Four are clearly passengers, the remaining three railway personnel. They are molded in one piece that includes the figures and base stand.
The first figure (Caucasian) is dressed in green cap, green suit, green shirt, and red tie. He carries a white bag in his left hand and a silver grey package under his right arm. His shoes have been painted green, the same as the base stand colour.
The second figure (Caucasian) is dressed in black cap, black suit/uniform, and black shirt. He carries a red shoulder bay with his left hand. His shoes have been painted black, the same as the base stand colour.
The third figure (Caucasian) is dressed in a dark green suit with dark green shirt and cap, and red tie. He stands holding a green and brown item with silver golf clubs sticking out of it. His shoes have been painted green, the same as the base stand colour.
The fourth figure (Caucasian) is a boy, dressed in red cap, red jacket, red short trousers, and red shirt. His shoes have been painted red, the same as the base stand colour.
The fifth figure is female (Caucasian) and she has blonde hair and is dressed in yellow dress suit with pleated skirt. She carries a red purse or bag under her left arm and her shoes have been painted yellow, the same colour as the base stand.
The sixth figure (Caucasian) is dressed in a dark grey overcoat with black hat, black trousers, grey shirt, and red tie. He stands with his right arm outstretched and holds a brown walking stick. His left hand carries a brown briefcase. His shoes have been painted dark grey, the same as the base stand colour.
The seventh figure (Caucasian) is dressed in a pair of grey overalls with dark grey cap,brown neckerchief, and white shirt with rolled up sleeves. He stands with his arms by his sides. His shoes have been painted dark grey, the same as the base stand colour.
The sack barrow, probably intended to accompany the seventh figure, is dark green.
The base stands and figures have no manufacturer's mark but may carry country of origin detail (Japan) on the underside of the base.
The item comes in the distinctive dark blue cardboard packaging associated with this brand of toys and the flat tray has cellophane wrapped around it. The card carries a white panel on each end and the left hand end has "5859-4" in blue text on it. The front and rear sides have "Metal Miniature H.O. Figures" in large white lettering centred in the middle of the side. The bottom of the tray is also dark blue with "AHI, brand toys" on two lines inside a white rectangle in the centre, and "Made in Japan" to the bottom right (as viewed) in white text.
I do not know exactly when this item was issued but it would have been between the early 1960s and 1970.