Der Big Red Max starter set. AWESOME! I loved that rocket and the Big Foot launch pad that it came with.
Got it about 1980 and my mom threw it out back in '91 when I got married and moved out of the house. She didn't think I would want my rocket stuff anymore. She also threw out my Sissor Wing Transport, Alien Explorer, and my Starship Nova. I was pretty bummed when I went over to pick that stuff up and she told me she dumped it. I could tell what she had done by the look on her face when I asked where the stuff was.
Since then I have cloned the Red Max and Alien Explorer.
ESTES Goblin 1971. My Dad built it for me, and I restored it a few years ago. I had found it in the bottom of a box of other stuff at my Mom's house. It had shreds of one fin, a crushed body tube, and no nosecone, but it was my first rocket. So I re-rounded the body tubed by stuffing it with BT-55 tube couplers, sanded it smooth, attached new fins and a BMS nosecone.
One of those moulded plastic 4 finned bottoms, and a BT..
The launch system was a plactic 'cap' that screwed to the giant 6v battery. The batter weight provided the 'support' (no legs). No ajustment either, unless you wedged something under the battery to get your launch angle.
My first was scratchbuilt (honest). Over 30 years ago now, it was built from some scraps from my uncle's rocketry supplies. Body tube was an old Estes engine shipping tube (light blue), a leftover balsa nose cone and balsa fins cut to roughly emulate the Alpha pattern (done by eye, looking at the Estes catalog). Engine mount consisted of tons of masking tape wrapped around the engine (friction fit for a non min diameter tube). Shock cord was a length of cotton twine, crepe-paper streamer, and an eye hook I scrounged from my Dad's collection of miscellaneous screws. It was rougly Alpha-esque, although a lot cruder. Paint was was whatever enamel found on the garage shelf. (Did I mention walking to school was uphill both ways?)
First factory kit was an Estes Mark II. Lost it on its second flight. Turned me off to kits for while. I could scratch build for a fraction of the cost, saving my pennies (literally) for engines. I can remember that firing three (ABC) motors in any given session was an "expensive" day of flying. All my launch hardware was scratch built, and that tendency continues to this day, only buying kits where they are classics or are otherwise unique.