The pair of wall lights, model am3l, am/as series manufactured by sirrah, italy designed by frano albini and franca helg in 1969. The am/as series was a modular light system designed where all bases and shades could be exchanged because of an innovative and uncomplicated switch system in the shades. All the parts had a specific serial number. Large sized wall lamps designed by designed duo franco albini and franca helg and manufactured by sirrah, italy 1969. This table lamp is from the am/as series designed by albini and helg in 1969.wall lamp model am3l the am/as series was a broad modular light system where all bases and shades could be combined because of an ingenious and easy switch system in the shades. Designed by franco albini, franca helg and antonio piva. Perfect vintage condition, original metal structure production sirrah 1968-71 ca. Metal shade: 28 x 31 cm bibl: sirrah, lampade ed elementi per l'arredo, lebanti e nanni this piece is attributed to the mentioned designer/maker. It has no attribution mark and no official proof of authenticity, however it is well documented in design history. I take full responsibility for any authenticity issues arising from misattribution, up to 250v (europe/uk standard).the wiring of this item may be original and might need replacement, if not specified otherwise.