14A [Criteria for an offer (basic criteria): intention to be bound in case of acceptance];

18A [Acceptance of offer (time and manner): criteria for acceptance];

19A1 [Reply to offer purporting to accept but containing additions or modifications: in general, consitutes rejection and counter-offer];

23A [Time of conclusion of contract: contract concluded when acceptance becomes effective];

33A [Time for delivery: on date fixed by or determinable from contract]